I have a huge garden filled with junipers as a backdrop that is over 20 years old. They have become very wide (around 20-25 feet). My problem is that there is now bittersweet growing in the middle of them. I can't get into the middle to dig it out since they are so thick. Short of ripping them all out, any suggestions on how to deal with it? Obviously can't spray with weed killer because it would kill the junipers. I really don't want to dig them out since it would be SO expensive to have someone do it and I am not sure I can manage doing it on my own. We have critters who live in there and I would hate to send them packing. I have no clue where this stupid vine came from but I wish it had stayed there!!!!